README.md

A map of the Chicago mayoral election results of February 25, 2015, by precinct. Election results data scraped from the Chicago Board of Elections. Colors by ColorBrewer. Precinct shapefiles from a FOIA request to the Chicago Board of Elections, processed into TopoJSON by ogr2ogr, PostGIS, and topojson. Ward boundaries aggregated from precincts using PostGIS. City boundary data from City of Chicago data portal.

chicago_2015_precincts_topo.json

Makefile

all: results.csv

results.csv: scrape.py
	python $< > $@.tmp
	mv $@.tmp $@

clean:
	-rm -f results.csv

.PHONY : clean

chicago_2015_wards_topo.json

chicago_topo.json

index.html

results.csv

scrape.py